When the year is over, Chun Geng mentions the agenda. March and April are the busy seasons of spring ploughing, spring wheat, spring maize, soybean, cotton and other spring-cropped crops in Northeast China, Inner Mongolia and Northwest China. It is also the time when the early rice in the Yangtze River Valley is transplanted with the base fertilizer, the fertilizer is added after the transplanting, and the litchi and the longan are used to fertilize the fruit fertilizer. In recent years, the biggest favorite of fertilization in Northeast China is the “Yunhe brand high-concentration potassium sulfate-type compound fertilizer†produced by Sichuan Jifeng. Because of its quality and formula, it is most suitable for the soil and crop types in the region and adapted to local conditions.
The spring crops in the northeast should be planted in a timely manner, and when they are planted early, they will be frozen. It is impossible to carry out deep tillage and land preparation. If the fertilizer is applied after the autumn of the previous year, it can be deeply cultivated. There are two advantages to this; first, the applied organic fertilizer has sufficient maturity time to improve fertilizer efficiency; second, the soil is alternated by autumn tillage and freezing and thawing, and the soil structure is improved, which can not only protect the soil but also prevent the topsoil when it is frozen. Water is stagnant and damaging occurs. Autumn tillage can also reduce pests and diseases. Practice has proved that crop yield can be increased by 10%-20% compared with fertilization before sowing.
In addition to paying attention to the true and false of fertilizers, the selection of fertilizers should pay special attention to the ratio of nitrogen, phosphorus and potassium in crops under different fertilization conditions. When you choose "Yunhe brand high concentration potassium sulfate type compound fertilizer", the amount of nitrogen, phosphorus and potassium applied to the northeast high yield (more than 600kg per mu) corn base fertilizer should be 5-7 kg, 5-6 kg. , 5-8 kg. On this basis, the application of nitrogen fertilizer 8-10 kg in the big bell period. That is to say, the basic requirement of the base fertilizer ratio is that the amount of nitrogen and phosphorus is roughly equal, and the amount of potassium is determined according to the characteristics of the local soil and crop.
What fertilizer should be used for the base fertilizer? There are three options available. First, the application of general-purpose compound fertilizer, that is, fertilizers with substantially the same nitrogen, phosphorus and potassium nutrients, such as the high-concentration sulfuric acid of the “15-15-15†and “14-17-14†formulas of Yunhe brand produced by Sichuan Jifeng. Potassium compound fertilizer, 30-40 kg per acre. Second, the diammonium is combined with urea and potassium chloride to apply 12-14 kg of diammonium phosphate, 8-10 kg of urea, 10-15 kg of potassium chloride per mu, and then apply the appropriate amount of urea. Third, under mechanized conditions, one-time layered fertilization, no longer topdressing. 40-50 kg of high-concentration formula "24-11-10" and "22-23-5" high-concentration potassium sulfate type compound fertilizer can be used; when sowing, 1/3-1/4 of the fertilizer and the remaining fertilizer are divided. The layers are applied deep to the soil layers of 5 cm and below, so that the crops can absorb nutrients from different soil layers in the early and late stages.
The spring crops in the northeast should be planted in a timely manner, and when they are planted early, they will be frozen. It is impossible to carry out deep tillage and land preparation. If the fertilizer is applied after the autumn of the previous year, it can be deeply cultivated. There are two advantages to this; first, the applied organic fertilizer has sufficient maturity time to improve fertilizer efficiency; second, the soil is alternated by autumn tillage and freezing and thawing, and the soil structure is improved, which can not only protect the soil but also prevent the topsoil when it is frozen. Water is stagnant and damaging occurs. Autumn tillage can also reduce pests and diseases. Practice has proved that crop yield can be increased by 10%-20% compared with fertilization before sowing.
In addition to paying attention to the true and false of fertilizers, the selection of fertilizers should pay special attention to the ratio of nitrogen, phosphorus and potassium in crops under different fertilization conditions. When you choose "Yunhe brand high concentration potassium sulfate type compound fertilizer", the amount of nitrogen, phosphorus and potassium applied to the northeast high yield (more than 600kg per mu) corn base fertilizer should be 5-7 kg, 5-6 kg. , 5-8 kg. On this basis, the application of nitrogen fertilizer 8-10 kg in the big bell period. That is to say, the basic requirement of the base fertilizer ratio is that the amount of nitrogen and phosphorus is roughly equal, and the amount of potassium is determined according to the characteristics of the local soil and crop.
What fertilizer should be used for the base fertilizer? There are three options available. First, the application of general-purpose compound fertilizer, that is, fertilizers with substantially the same nitrogen, phosphorus and potassium nutrients, such as the high-concentration sulfuric acid of the “15-15-15†and “14-17-14†formulas of Yunhe brand produced by Sichuan Jifeng. Potassium compound fertilizer, 30-40 kg per acre. Second, the diammonium is combined with urea and potassium chloride to apply 12-14 kg of diammonium phosphate, 8-10 kg of urea, 10-15 kg of potassium chloride per mu, and then apply the appropriate amount of urea. Third, under mechanized conditions, one-time layered fertilization, no longer topdressing. 40-50 kg of high-concentration formula "24-11-10" and "22-23-5" high-concentration potassium sulfate type compound fertilizer can be used; when sowing, 1/3-1/4 of the fertilizer and the remaining fertilizer are divided. The layers are applied deep to the soil layers of 5 cm and below, so that the crops can absorb nutrients from different soil layers in the early and late stages.
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